HRID543545

反应详情

EQUATION

反应方程式

HRID 543545 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

The procedure was carried out in accordance with Example 22, while utilizing 1.36 g of 7-ACA, 0.36 g of water, 8.0 ml of acetonitrile, 1.54 g of 2-ethoxycarbonylmethylthio-5-mercapto-1,3,4-thiadiazole and 5.04 g of diphosphoryl tetrachloride, and there was obtained 2.06 g (91.8%) of 7-amino-3-(2-ethoxycarbonylmethylthio-1,3,4-thiadiazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid.